Transmission gear



April 10, 1928. v 1,665,701

s. HOLDENER TRANSMISSION GEAR Filed March 13. 1924 Mmmm; l l

In Ven fof? ing of the spindle. The inserted bush .511 is provided with fiat cam parts '57 with which a two-armed release lever' 58 co-operates, the latter being screwed to the spindle.. Ordinarily the release `lever 58 vrests with its one arm against a stop 59 (Fig-2) provided on the casing 39, and is pressed against that stop by the action of a spring 60 interposed between the second arm of the release lever and the casing 39. The first mentioned arm of the release lever 58 is provided with an eyelet 61 adapted `to take `up an adjustable part influenced by the stop-motion of the loom. A compression spring 62 is .pushed over the spindle 119 and abuts with its one end against the bush 52 and with its other end against al disc resting against the square portion of the spindle 49, whereby the latter can be influenced 4in the axialdirection by said spring. IVhen the partsof the clamping device occupy the positions illustrated in Fig. 3 the split casing 39 is not clamped to` gether. In this case tand when the'shaft 1, which is provided with'a cent-ral bore l hav- .ing a key slot for connection to a driving shaft- (i. e. to the shaft of the electro-motor), isdriven, the transniittingl member 9 and the parts 21:.and 25 cofoperating with the former, together with the hollow body 40 will rotate in afdirection that is oppositeto the direction of rotation of the shaft 1 (bachwards) on accountof the resistance of the shaft 218 of the loom which the transmission gear encounters. If, on the other hand, the

gear casing 39 is clamped together and lthe hollow body l0 together with the bush 21 is thereby prevented from rotating the transmitting member 9 carrying out eccentric movements causes the hollow shaft 23 torotate in the same direction as thegear'shaft 1 but at a reduced speed (ahead running). This turning motion is transmitted from the hollov7 shaft 23 to -the shaft 48 of the loom y for actuating the latter through theintermediary of thevpar-ts 42,43', 46 and .418. I

vIn order to clamp the gear casing 39, the

adjusting lever ofthe clamping device isr turned in the direction of the arrow indicated inV Fig.r 3, so that the beak 51 leaves the notch provided inthe bush and moves up the inclined face of the notch whereby the two lugs 39 of the casing 89 are `brought nearer to each other and the 'spring- 62 is compressed. Y

Then the stop motion of the loom becomes `operative the release lever 58 is displaced againstl'the action of the-spring (SO, so that Ythe cam 57 on the release lever moves ofi the cam 56 on the lbush 54. Thereupon the two lugs 39 of thecasing 39 Varen'io'ved away from each other to such an extent that. by the influence ofthe springingaction" inherent to the casing- 39 and of `the compression spring G2, the cams 56 and 5T vof the release lever 58 and of the bush 5d respectively' come to bear mutually against theriiat facing of the other parts (54 and 58 respectively). In this case the hollow body 40 together with the bush 21 can rotate again, whereby the gear runs idle and theloomis `no longer driven. Y

In order to return the release lever 58 into the shown position in which it is ready to operate, the adjustment lever 50 is turned back so that its beak 5l enters the notch in the bush 52. Thereby the spring 62 causes an axial displacementof the spindle d) to auch a 'degree that the release lever v`o8 is turned back by the infiuencc of the spring (il), so that .the cam 57 rests again on the cam '5G of the bush. The toothed rims or gears are preferably, although not necessarily,

constructed as disclosed and claimed in my nected to'said bush and in mesh with the internally toothed rim of the transmitting member, an organ adapted for powerftransmission to outside ofthe gear and operatively connected to the loom shaft, an internally toothed rim on said organ andin mesh with the externallyto'othed rim on the transmitting' member, means to clamp said split casing to prevent said bush from rotating and cause 'thereby the gear to transmit power, yand means to operate said clamping 2. In a transmission gear adapted for use in driving looms, a shaft, an' eccentric on said shaft, a transmitting member loosely mounted on said eccentric, an internally toothed rim andan externally toothed rim provided on said transmitting member, a split casing, bush rotatable in said casing. an externally toothed rim operatively connected to said bush and in mesh with the internally toothed rim of the transmitting member, an organ adapted for power transmission to outsideof the gear and operatively connected to vthe loom shaft, an internally toothed rim on said organ and in mesh with the externally toothed rim on the transmitting member, means to clamp said split casing to .prevent said bush from rotating and cause thereby` the gear to trans mit power, and a release lever adapted to render said clamping means inoperative, said lever being influenced by the stop motion of the loom.

3. In a transmission gear adapted for use loo las

in driving looms, a shaft, an eccentric on said shaft, a. transmitting member loosely mounted on said eccentric, an internally toothed rim and an externally toothed rim provided on said transmitting member, a split casing, a bush rotatable in said casing, an externally toothed rim operatively connected to said bush and in mesh with the internally toothed rim of the transmitting member, an organ adapted for power transmission to outside of the gear and operatively connected to the loom shaft, an internally toothed rim on said organ and in mesh with said externally toothed 'ni on the transmitting` member, means to manip said split casing torprevent said bush from rotating and canse thereby the gear to transmit power, and a release lever adapted to render said clamping means inoperative, means to operate s id lever, a spring acting on said release lever, and a projecting part on the release lever co-operating with a projecting part of an adiacent f5 ng stationary with regard to the casing, the stop motion causing a tur Aing motion of the release lever whereby said projecting parts are brought out of contact with each other and the clamping means rendered inoperative.

l. ln a transmission gear adapted for use in driving looms, a shaft, an eccentric on said shaft, a transmitting` member loosely mounted on said eccentric, an internally toothed rim and an externally toothed rim provided on said transmitting member, a split casing, a bush rotatable in said casing, an externally toothed rim operatively connected to said bush and in mesh with the internally toot-hed rim of the transmitting member, an organ adapted for power transmission to outside of the gear and operatively connected to the loom shaft, an internally toothed rim on said organ and in mesh with the externally toothed rim on the transmitti u member,` means to clamp said split a ng to prevent said bash from rotating and cause thereby the to transmit power, and a release lever adapted to render said claimY 1ng means inoperative, means to operate said lever, a spindle cti-operating with said casing so that an axial displacement of the spindle causes the clamping action, an adjusting lever turnable on said spindle and ired against displacement relatively to said spindle, and a bealt on said lever cooperating with a notch in a facing stationary with regard to the casing, whereby a turning of said adjusting lever causes the beak to leave said notch, the spindle being axially displaced thereby and the casing clamped.

5. ln a transmission gear adapted for driving looms a casing comprising a split sleeve, a bush closing one end of the casing and loose therein and having external gear teeth, a hollow cylindrical body in the sleeve and secured to said bush, a driving shaft having two bearing portions and an intermediate excentric portion, one of said two portions` bearing in said bush, a transmitting member on the excentric portion of saidV shaft having an internal gear at one end meshing with the gear on said bush, and an external gear on its opposite end, a hollow shaft mounted on the third driving shaft portion and having an internal gear meshing with the external `gear on said transmitting,l member. a driven shaft, and means to clamp said sleeve on said hollow cylindrical body said body having a flange between which and said bush the sleeve is included.

(i. A transmission mechanism, including a shaft having an eccentric, a transmission member rotatably mounted on said eccentric, a hollow cylindrical body encircling said transmission member, an external gear connected to said cylindrical member and disposed within said transmission ineinber, an internal gear in said transmission member, meshing with and eccentrically disposed in respect to said external gear, a driven member projecting into said cylindrical member and having an internal gear concentric with said shaft, said transmission member having an external eccentric gear Within and meshing with said second mentioned internal gear, a bracket serving as a support for said transmission member and including a split sleeve engaging with and supporting said cylindrical member, and means for clamping said sleeve to prevent or permit rotation of said cylindrical member.

7. A transmission gear for looms, including a shaft, an eccentric on said shaft, a transmitting member loosely mounted on said eccentric, a cylindrical member concentric with saidv shaft, a pair of eccentric gears, one mounted within the other and one connected to said cylindrical member and the other to said transmitting member, a driven member, a pair of meshing eccentric gears, one within the other and one connected to said transmitting member and the other to said driven member, a split easing encircling said cylindrical member, means for clamping said split casing to prevent said cylindrical member from rotating, a release lever' adapted to render said clamping means inoperative, a spring connected to said release lever, and a projecting part on the release lever co-operating with a projecting part stationary with respect to the casing, whereby the clamping means may be rendered inoperative upon a turning movement of the release lever against the action of said spring.

8. A transmission gear for driving looms, including a casing, a bushing closing one end of said casing and rotatable therein and having an external gear, a hollow cylindrical body in said casing and secured t0 said bushing, a driving shaft having a bearing 'end meshing with said first mentioned gear and an external gear at the opposite end, a

i hollow driven shaft co-aXial with said driving shaft and having an internal gear meshing with said second. mentioned external gear, said hollow shaft having` a bearing in said cylindrical body, and means 'orpreventing'or permitting rotation of said cylindrical member.

9. A transmission gear for looms, includ- Ving a shaft, an eccentric on said. shaft,a

transmitting member loosely mounted on said eccentric, a cylindrical member concentricwith said shaft, a pair of eccentric gears, one mounted Within the other and one connected tosaid cylindrical member and the other to said transmitting member, a driven member, a pair ot' meshing eccentric gears, one Within the other and one connected to said transmitting member and the other to said driven member, a bracket serving as a support for said transmission member and including a split sleeve engaging with and supporting said cylindrical member, and means for clamping said sleeve to prevent or permit rotation ofsaid cylindrical member. Y

In testimony that I claim the foregoing as my invention, I have signed my name.

SIMON HOLDENER. 

